Palm oil refining section
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I’ve been in contact with this project recently and am a bit confused. In the refining stage of palm oil, palm oil itself is a mixture that contains 50% saturated fatty acids. However, there are also some free fatty acids among them, and steam stripping and distillation are now used to remove these free fatty acids. Question: Where can I find information on the specific components of palmitic acid, such as what esters it contains? What acid? What specific mixture of acids does free fatty acid refer to? ? I’ve tried both Baidu and VIP, but couldn’t find any answers; it’s very frustrating. I earnestly ask those who know the answer to help resolve this question; thank you very much!
Nutritional components of palm oil Palm oil is also known as a saturated fat, as it contains 50% saturated fats. Fats are composed of a mixture of three components: saturated fats, monounsaturated fats, and polyunsaturated fats. The human body’s digestion and absorption rate of palm oil exceeds 97%, and like all other plant-based oils, palm oil itself does not contain cholesterol. As a fat with a high saturation level, palm oil was once thought to potentially increase cholesterol levels in human serum. However, further experiments conducted by many experts have shown that consuming palm oil does not increase cholesterol levels in the serum; on the contrary, it tends to reduce them. This is because numerous studies indicate that different saturated fatty acids have varying effects on blood lipids. Palm oil is rich in neutral fatty acids, and the substances that contribute to increased cholesterol levels are present in very small amounts in palm oil (1%). The natural vitamin E, tocotrienols (600–1000 mg/kg), carotenoids (500–700 mg/kg), and linoleic acid (10%) found in palm oil are highly beneficial for human health. Some researchers have conducted studies on different ethnic groups (Europeans, Americans, Asians), and the results show that palm oil is a vegetable oil that fully meets the health needs of the human body. Myristic acid: about 0.73; Arachidic acid: 37.94; Stearic acid: 4.51; Oleic acid: 39.56; Linoleic acid: 17.26 Table 1: Fatty acid composition of palm oil (%) Relative density (at 40°C/20°C water): 0.9170–0.9440; Refractive index (at 40°C): 1.4560–1.4590; Freezing point (°C): 27–30; Iodine value (g I2/100g): 52–58; Saponification value (mg KOH/g): 196–210; Total fatty acid content (%): 94.2–98.7; Unsaponifiable matter (%): about 0.3 Table 2: Key parameters of palm oil Specifications: Free fatty acids, Water content, Iodine value, Color, Melting point Crude palm oil: Less than 5.0%; Less than 5.0%; ---; ---; --- Refined palm oil: Less than 0.1%; Less than 0.1%; 50–55; Red color grade 3 or 6 or lower; 33–39 Crude palm olein: Less than 5.0%; Less than 0.25%; Above 56; ---; Below 24 Refined palm olein: Less than 0.1%; Less than 0.1%; Above 56; Red color grade 3 or 6 or lower; Below 24 Crude palm stearin: Less than 5.0%; Less than 0.25%; Below 48; ---; Above 44 Refined palm stearin: Less than 0.2%; Less than 0.15%; Below 48; Red color grade 3 or 6 or lower; Above 44 Table 3: Quality indicators of palm oil
Please, you didn’t read my question carefully. What you have listed are the results from Baidu searches; the figures shown represent the percentage content of their fatty acids. Palm oil itself may contain a certain amount of acids, a certain amount of esters, and other substances (such as carotenes). The fatty acid content indicated refers to the amount of C12-C18 acids after all the esters have been hydrolyzed and mixed together – it is an equivalent value, not the actual mass percentage. Sigh. . . It is impossible to perform a numerical simulation for this value. . I don’t know if you understand? ? But still, thank you. :(
:) It’s just communication. . .
Palm oil is primarily composed of palmitic acid, which accounts for about 94% of its components; followed by myristic acid, or tetradecanoic acid, which makes up around 3%； About 3% linoleic acid. Please refer!